FR2361155A1 - Procede pour l'amelioration de l'activite de catalyseurs ayant deja servi, a l'argent sur support - Google Patents

Procede pour l'amelioration de l'activite de catalyseurs ayant deja servi, a l'argent sur support

Info

Publication number
FR2361155A1
FR2361155A1 FR7725011A FR7725011A FR2361155A1 FR 2361155 A1 FR2361155 A1 FR 2361155A1 FR 7725011 A FR7725011 A FR 7725011A FR 7725011 A FR7725011 A FR 7725011A FR 2361155 A1 FR2361155 A1 FR 2361155A1
Authority
FR
France
Prior art keywords
activity
catalysts
catalyzers
money
improving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7725011A
Other languages
English (en)
Other versions
FR2361155B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of FR2361155A1 publication Critical patent/FR2361155A1/fr
Application granted granted Critical
Publication of FR2361155B1 publication Critical patent/FR2361155B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66—Silver or gold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
    • B01J38/485—Impregnating or reimpregnating with, or deposition of metal compounds or catalytically active elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Catalyseurs à l'argent pour préparer de l'oxyde d'éthylène par oxydation directe de l'éthylène. Il est connu d'augmenter la sélectivité de ces catalyseurs par imprégnation avec une solution de sels de césium ou de rubidium. Suivant l'invention, un lit fixe de catalyseur est formé, dans sa longueur de fractions successives ayant été imprégnées par des solutions de sels de césium ou de rubidium à teneurs croissantes dans le sens de passage des gaz à convertir sur le catalyseur. Le procédé s'applique en particulier à des catalyseurs ayant perdu à la longue une partie de leur activité.
FR7725011A 1976-08-14 1977-08-16 Procede pour l'amelioration de l'activite de catalyseurs ayant deja servi, a l'argent sur support Granted FR2361155A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2636680A DE2636680C3 (de) 1976-08-14 1976-08-14 Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren

Publications (2)

Publication Number Publication Date
FR2361155A1 true FR2361155A1 (fr) 1978-03-10
FR2361155B1 FR2361155B1 (fr) 1981-08-28

Family

ID=5985473

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725011A Granted FR2361155A1 (fr) 1976-08-14 1977-08-16 Procede pour l'amelioration de l'activite de catalyseurs ayant deja servi, a l'argent sur support

Country Status (16)

Country Link
US (1) US4123385A (fr)
JP (1) JPS5926338B2 (fr)
AU (1) AU511144B2 (fr)
BE (1) BE857824A (fr)
BR (1) BR7705359A (fr)
CA (1) CA1103651A (fr)
DD (1) DD131841A5 (fr)
DE (1) DE2636680C3 (fr)
ES (1) ES461441A1 (fr)
FR (1) FR2361155A1 (fr)
GB (1) GB1556115A (fr)
IT (1) IT1083946B (fr)
NL (1) NL7708778A (fr)
PL (1) PL200192A1 (fr)
RO (1) RO73097A (fr)
SE (1) SE435139B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018471A1 (fr) * 1979-04-26 1980-11-12 Chemische Werke Hüls Ag Procédé d'activation ou de réactivation de catalyseurs sur support à l'argent
FR2509630A1 (fr) * 1981-07-17 1983-01-21 Northern Petro Chem Co Procede pour eliminer des impuretes, notamment le potassium, des catalyseurs usages d'argent pour la production d'oxyde d'ethylene
EP0168782A2 (fr) * 1984-07-20 1986-01-22 Hoechst Aktiengesellschaft Procédé d'amélioration de l'activité des catalyseurs à l'argent sur support
FR2851246A1 (fr) * 2003-02-14 2004-08-20 Bp Lavera Snc Procede de fabrication d'oxyde d'ethylene

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740480B2 (de) * 1977-09-08 1979-07-05 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren
DE2861030D1 (en) * 1977-11-19 1981-11-26 Basf Ag Process for preparing an ethylene oxide catalyst
DE2904919A1 (de) * 1979-02-09 1980-08-21 Basf Ag Verfahren zur herstellung und regenerierung von traegerkatalysatoren sowie deren verwendung fuer die herstellung von aethylenoxid
US4224194A (en) * 1979-02-26 1980-09-23 Texaco Development Corp. Process for preparing an ethylene oxide catalyst
US4248741A (en) * 1979-05-29 1981-02-03 The Dow Chemical Company Method of making catalysts for the production of ethylene oxide
DE2938245A1 (de) * 1979-09-21 1981-04-09 Hoechst Ag, 6000 Frankfurt Verfahren zur verbesserung der wirksamkeit von silber-traegerkatalysatoren
US4760042A (en) * 1982-03-24 1988-07-26 Scientific Design Company, Inc. Process for preparing an alkali metal-promoted silver catalyst
US4774222A (en) * 1982-06-16 1988-09-27 Scientific Design Company, Inc. Catalyst for oxidation of ethylene to ethylene oxide and process for preparing the catalyst
DE3229541A1 (de) * 1982-08-07 1984-02-09 Hoechst Ag, 6230 Frankfurt Verfahren zur verbesserung der wirksamkeit von gebrauchten silber-traegerkatalysatoren
US4575494A (en) * 1984-02-08 1986-03-11 The Dow Chemical Company Alumina compositions useful as catalyst supports for ethylene oxidation
JPS60216844A (ja) * 1984-04-13 1985-10-30 Nippon Shokubai Kagaku Kogyo Co Ltd エチレンオキシド製造用銀触媒
GB8611121D0 (en) * 1986-05-07 1986-06-11 Shell Int Research Silver catalyst
US4908343A (en) * 1987-02-20 1990-03-13 Union Carbide Chemicals And Plastics Company Inc. Catalyst composition for oxidation of ethylene to ethylene oxide
DE3905578A1 (de) * 1989-02-23 1990-08-30 Basf Ag Verfahren zur herstellung eines silberkatalysators
US5008413A (en) * 1989-10-23 1991-04-16 Scientific Design Company, Inc. Catalyst for oxidation of ethylene to ethylene oxide
US5102848A (en) * 1990-09-28 1992-04-07 Union Carbide Chemicals & Plastics Technology Corporation Catalyst composition for oxidation of ethylene to ethylene oxide
US5112795A (en) * 1990-10-12 1992-05-12 Union Carbide Chemicals & Plastics Technology Corporation Supported silver catalyst, and processes for making and using same
US7932408B2 (en) 2006-09-29 2011-04-26 Scientific Design Company, Inc. Catalyst with bimodal pore size distribution and the use thereof
US7977274B2 (en) 2006-09-29 2011-07-12 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Catalyst with bimodal pore size distribution and the use thereof
RU2452564C2 (ru) * 2007-05-11 2012-06-10 Барри Дж. БИЛЛИГ Активация высокоселективных катализаторов в установках синтеза оксидов олефинов
US7507845B1 (en) 2007-08-27 2009-03-24 Sd Lizenzverwertungsgesellschaft Mbh & Co Kg Process for production of an olefin oxide
CN102177145B (zh) 2008-10-08 2014-07-30 巴斯夫欧洲公司 生产烯化氧的方法
US9115104B2 (en) 2009-01-27 2015-08-25 Scientific Design Company, Inc. Ethylene oxide catalyst with optimized cesium content
WO2017040121A1 (fr) * 2015-08-28 2017-03-09 Lyondell Chemical Technology, L.P. Procédé d'époxydation et catalyseurs devant être utilisés dans celui-ci
US11931725B2 (en) 2022-07-19 2024-03-19 Scientific Design Company, Inc. Ethylene oxide high selectivity catalyst conditioning process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253747A1 (fr) * 1973-12-05 1975-07-04 Ici Ltd
FR2271869A1 (fr) * 1974-05-20 1975-12-19 Shell Int Research

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831870A (en) * 1956-05-07 1958-04-22 Allied Chem & Dye Corp Production of ethylene oxide
US3121099A (en) * 1960-03-04 1964-02-11 Montedison Spa Process for the oxidation of olefins on silver catalyst graduated selectivity
ES447348A1 (es) * 1975-05-02 1977-07-01 Hoechst Ag Procedimiento para la reactivacion de catalizadores de platausados para obtener oxido de etileno de acuerdo con el pro- cedimiento de oxidacion directa.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253747A1 (fr) * 1973-12-05 1975-07-04 Ici Ltd
FR2271869A1 (fr) * 1974-05-20 1975-12-19 Shell Int Research

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018471A1 (fr) * 1979-04-26 1980-11-12 Chemische Werke Hüls Ag Procédé d'activation ou de réactivation de catalyseurs sur support à l'argent
FR2509630A1 (fr) * 1981-07-17 1983-01-21 Northern Petro Chem Co Procede pour eliminer des impuretes, notamment le potassium, des catalyseurs usages d'argent pour la production d'oxyde d'ethylene
EP0168782A2 (fr) * 1984-07-20 1986-01-22 Hoechst Aktiengesellschaft Procédé d'amélioration de l'activité des catalyseurs à l'argent sur support
EP0168782A3 (en) * 1984-07-20 1986-04-23 Hoechst Aktiengesellschaft Process for increasing the activity of a supported silver catalyst
FR2851246A1 (fr) * 2003-02-14 2004-08-20 Bp Lavera Snc Procede de fabrication d'oxyde d'ethylene

Also Published As

Publication number Publication date
BR7705359A (pt) 1978-06-06
GB1556115A (en) 1979-11-21
BE857824A (fr) 1978-02-16
AU511144B2 (en) 1980-07-31
DE2636680B2 (de) 1978-08-03
IT1083946B (it) 1985-05-25
CA1103651A (fr) 1981-06-23
DE2636680A1 (de) 1978-04-27
DE2636680C3 (de) 1979-04-05
JPS5322893A (en) 1978-03-02
RO73097A (fr) 1982-05-10
AU2789877A (en) 1979-02-22
NL7708778A (nl) 1978-02-16
SE435139B (sv) 1984-09-10
ES461441A1 (es) 1978-12-01
SE7709149L (sv) 1978-02-15
US4123385A (en) 1978-10-31
JPS5926338B2 (ja) 1984-06-26
FR2361155B1 (fr) 1981-08-28
DD131841A5 (de) 1978-07-26
PL200192A1 (pl) 1978-04-10

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